Reciprocating propeller for vessels



2 Sheets.Sh'eet 1.

(No Model.) v S. SNELLENBURG.

REGIPROGATING PROPBLLER FOR VESSELS.

I! N t a I D)" L I I witweoo o flue M4041 I 2 Sheets-Sheet 2.

(No Model.)

S. SNELLENBURG. REGIPROGATING PROPBLLER FOR vEssEL-s. No. 426,871. Patented-Apr. 29,1890;

Witness/e0 UNITED STATES PATENT [@FFICE- SAMUEL SNELLENBURG, or PHILADELPHIA, PENNSYLVANIA.

RECIPROCATING PROPELLER FCR VESSELS.

SPECIFICATION forming part of Letters Patent No. 426,871, dated April 29, 1890.

Application filed January 11, 1890. Serial No. 336,696. (No model.)

To all whom it may concern.-

Beitknown that I, SAMUEL SNELLENBURG, a.

in Reciprocating Propellers for Vessels; and

I do hereby declare the following to be a full,

clear, and exact description of the invention,

such as will enable others skilled in the art to which it appertains to make and use the same,

- referencebeinghad to the accompanyingdrawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to certain new and useful improvements in reciprocating propellers for vessels, and is designed more especially as an improvement upon my patent dated November 19, 1889, No. 415,584,which can be referred tofor a better understanding of the present invention.

'In my prior patent the floats are hinged or pivotally secured to bars carried by the sides of the reciprocating frames, so that in re versing they can move beyond the stops located above the same.

In my present invention the floats are hinged to rods carried by the reciprocating frames, so as to depend from the bars upon which they are secured, and the floats are arranged in a vertical series.

My present invention also embodies the special construction of the shifting mechanlsm.

In the accompanying drawings, Figure lis a longitudinal section of a reciprocating propeller constructed in accordance with my invention, and Fig. 2 is a rear elevation.

A refers to the hull of the vessel, and B the frames in which the operating mechanism reciproeates, said propelling mechanism consisting of two or more reciprocating frames O, which are made up of side pieces 0, connected to each other and attached to the piston-rod. These side pieces are providedwith transverse plates 6 e, which serve to connect said side pieces to each other.

G refers to the vertical bars, which have rearwardly-projecting offsets h, which serve as supports for transverse rods E, with which the lower ends of the floats F are adapted to engage when the bars G are raised. The

' floats F are arranged in a vertical series, and

are hinged at their tops to transverse bars or rods J, from which they normally depend and contact with the rods E on either side thereof when propelling the vessel. Each pair of the vertical sliding bars or hangers G are connected together at their upper ends by a transverse bar 1 x, looped centrally, through which the shifting-bar I passes, said shiftingbar being supported in suitable hangers D, the lower bearing portions y of which have downwardly-inclined ends and a central horizontal portion, the under side of the'shiftingbar being correspondingly recessed, so that when the lever occupies the position shown in full lines, Fig.1, the hangers G and the bars E carried thereby will be lowered beneath the ends of the floats, so that the said floats will swing upon their pivotsv and have no efiect as to the propulsion of the vessel. When the lever is thrown in the direction indicated by the arrow, the bar I will be moved and the hangers raised, so that the rods Ewill contact with the lower ends of the blades or floats F, thus permitting them to swing in one direction and hold them'against movement in an opposite direction, so as to propel the vessel according on which side of the bars E the floats are. In my piro r patent the floats were hungso that when they were not in use they would rest almost horizontally upon suitable supports; but by the present construction such supports are dispensed with. Ialso dispense with the double notches on the shifting-bar. The reciprocating frames are supported upon interlocking ways having antifriction rollers, as shown, which are located at the centers of said frames and upon the centers of the sides of the frames B.

I claim 7 1. In a reciprocating propeller for vessels, constructed substantially as shown, and having floats permanently mounted in horizontal reciprocating frames, said floats being arranged in vertical series, so as to depend from their supporting-bars, and vertically-moving frames carrying stops, against which the free ends of the floats or paddles abut, substantially as shown, and for the purpose set forth.

2. In combination with the horizontallysliding frame carrying a series of paddles or floats which are pivoted or hinged to bars to depend therefrom, said bars being perinanently seated in said frames, vertically-movlng frames carrying stops or cross bars, against which the floats are adapted to abut, a longitudinally-lnoving bar I, for maintaining the vertically-moving frame raised or lowcred, said bar I being supported in loops hav- 111 g inclined ends, and a central horizontal portion within which correspondingly-n otched portions of the bar I lie, substantially as shown, and for the purpose set forth.

The combination, in areeiproeating propeller for Vessels, of horizontallysliding frames having permanently secured thereto a number of floats F, which are arranged in vertical series, vertically-movable frames G, with olfsets which carry stops or rods E, which are located beneath the hinged or piv-, oted portions of the floats, a sliding bar I, for raising and lowering the vertically-moving frames G, said bar being supported in hangers the base of which is shaped to correspond with the notches formed in said bar, substantlally as shown, and for the purpose set forth.

4. The combination, in a reciprocatingpropeller, of acasing constructed as shown, horizontally-reciprocating frames carrrying paddles orfloats arranged in vertical or horizontal series so as to depend from their supporting-bars permanently seated in said frames, movable stops adapted to engage with said paddles or floats, means for operating said stops so as to raise and lower the same, the sliding frame being mounted centrally upon interlocking ways attached to the frame ,1 and the reciprocating frames, a double row of anti-friction rollers being interposed between the interlocking ways,substantially as shown, and for the purpose set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

SAMUEL SNELLENBURG.

WVitnesses:

CHARLES P. BOOTH, S. DESSAUER. 

